How to get the # of the node selected?

musenxie

By using NSEL, I chosed a node. Then I want to use one command to get this node number and store this value to a parameter/variable I defined.
Let';s say, there is only one node at x=200,y=200
by
NESL,ALL $NESL,S,LOC,X,200 $NESL,R,LOC,Y,200
I chosed this node(assured that by NESL,STAT), suppose the number is 123
then I define a variable by
*SET, NofNode,0
finally I wanna use one or two commands to assign the number of this node(123) to NofNode as it';s value. (NofNode=123)
How could I achieve that?
Thanks a lot!